<template>
  <div class="container">
    <div class="app-container">
      <el-tree

        :data="depts"

        :props="defaultProps"

        default-expand-all
      >
        <!-- :expand-on-click-node="false" -->
        <template #default="{ data }">
          <el-row

            style="width: 100%; height: 40px"

            type="flex"

            justify="space-between"

            align="middle"
          >
            <el-col>{{ data.name }}</el-col>
            <el-col :span="4">
              <span class="tree-manager">{{ data.managerName }}</span>
              <!-- $event 实参 表示类型 -->
              <el-dropdown @command="handleCommand($event, data.id)">
                <!-- 显示区域内容 -->
                <span class="el-dropdown-link">
                  操作<i class="el-icon-arrow-down el-icon--right" />
                </span>
                <!-- 下拉菜单选项 -->
                <el-dropdown-menu slot="dropdown">
                  <el-dropdown-item command="add">添加子部门</el-dropdown-item>
                  <el-dropdown-item command="edit">编辑部门</el-dropdown-item>
                  <el-dropdown-item command="del">删除</el-dropdown-item>
                </el-dropdown-menu>
              </el-dropdown>
            </el-col>
          </el-row>
        </template>
      </el-tree>
    </div>
    <Dialog ref="dialog" :dialog-visible.sync="visible" :pid="currentId" />
  </div>
</template>
<script>
import { getDepartmentList, delDepartment } from '@/api/department'
import { transListToTreeData } from '@/utils'
import Dialog from './components/Dialog.vue'
export default {
  name: 'Department',
  components: {
    Dialog
  },
  data() {
    return {
      currentId: null,
      visible: false,
      depts: [
        {
          name: '传智教育',
          children: [{ name: '总裁办' }, { name: '行政部' }, { name: '财务部' }]
        }
      ],
      defaultProps: {
        children: 'children',
        label: 'name'
      }
    }
  },
  created() {
    this.getDepartmentData()
  },
  methods: {
    handleCommand(type, id) {
      if (type === 'add') {
        this.currentId = id
        this.visible = true
      } else if (type === 'edit') {
        this.currentId = id
        this.visible = true
        // 因为更新是异步的所以第一次发请求会传一个null过去，调用方法是同步的
        this.$nextTick(() => {
          this.$refs.dialog.getDepartmentData() // this.$refs.addDept等同于子组件的this
        })
      } else {
        this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(async() => {
          try {
            await delDepartment(id)
            this.$message({
              type: 'success',
              message: '删除成功!'

            })
            this.getDepartmentData()
          } catch (error) {
            console.log(error)
          }
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          })
        })
      }
    },
    async getDepartmentData() {
      const data = await getDepartmentList()
      // console.log(data)
      const res = transListToTreeData(data, 0)
      this.depts = res
    }
  }
}
</script>

<style scoped>
.app-container {
 padding: 30px 140px;
 font-size: 14px;
}
.tree-manager {
 width: 50px;
 display: inline-block;
 margin: 10px;
}
</style>
